Seatbelt vendors

I'm looking to upgrade the seatbelts in my 1973 to a 3-point system, and I'm not at all conerned about originality -- I simply don't want to send my head through the windshield. Does anyone know of aftermarket vendors that sell a belt that is not too clunky and can be adapted to the 3-point supports in the 73 911?


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Jack Olsen
1973 911 T sunroof coupe